US Open 2026 is finished: why a Ruud contract still appears

The comparison behind the headline

Alexander Zverev won the 2026 US Open men’s singles title on September 13, according to the tournament’s official report. Our October 4 market data nevertheless retains a Casper Ruud contract at 0.05%. The sporting result and the contract’s open status are separate facts. ^[1][2]

At our October 4 observation, the relevant open contracts read: Casper Ruud 0.05%. These are recorded market prices, not official outcome declarations. The event’s cumulative volume was $26,378,802; that measures turnover across this parent event, rather than money backing any one scenario. ^[1]

The detail that changes the question

The tournament’s completed result rules out treating Ruud’s residual quote as an ordinary forward-looking title forecast. A small nonzero price in an unresolved record does not reopen a finished competition or overturn the official champion.

What would strengthen or weaken the case

The evidence supports settlement consistent with the official Zverev victory. For the remaining Ruud proposition, a qualifying Yes would require Ruud to be the champion, which the published official result does not show. ^[1][2]

The outstanding uncertainty is why this particular contract remains API-open and when its resolution status will update. This research does not verify a cause such as a dispute, delayed settlement or an administrative error; those should not be invented.

The evidence that will settle it

The market follows the official 2026 US Open men’s singles winner and allows an eliminated player to resolve No. The remaining Ruud record should be interpreted against the already published tournament result. ^[3][2]

The rules specify an October 31, 2026 fallback for cancellation, excessive postponement or no winner, resolving Other. That fallback does not mean the September tournament is still being played; the official winner has already been reported. ^[3][2]